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Design of low cost power supply 230V 50Hz AC to 12V 100mA DC

$30-250 USD

Completed
Posted almost 14 years ago

$30-250 USD

Paid on delivery
We have everything ready in our project except power supply circuitry. Currently we use step down transformer (along with bridge rectifier and capacitor) for conversion from 230V 50Hz AC to 12V 100mA DC. But it is costly and bulky. So we want to replace it with less costly and light-weight circuit. 12V DC output would be used by IC 4060, IC 4002, relay and LED. So protections like over-current protection, over-power protection etc. should be taken into account only if necessary since cost of components is a major concern. Output may also contain some amount of ripple provided IC and relay works fine. Cost of manufacturing should be as low as possible. We want: 1. Circuit diagram of power supply circuitry suitable for our application. 2. Bill of material so that we can order components ourselves and assemble according to circuit diagram. We don’t want: 1. PCB layout or gerber file. We will make that at our end. Note: This type of power supply circuitry (along with enclosure and cable) is sold in Indian market in retail in Rs.30 (USD 0.6). A picture of such product is attached. But we cannot reverse-engineer this product and take it because its output is 5V and transformer details is not written on it. I think it is a switching power supply.
Project ID: 693356

About the project

14 proposals
Remote project
Active 14 yrs ago

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your cost of Rs 50/ per unit is possible if you buy in quantity,My design is lowest cost of line SMPS but to get down to that cost you have to go into quantity production, else there is a way out, which is non isolated design. regards adip
$200 USD in 4 days
5.0 (9 reviews)
4.2
4.2
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[login to view URL] your PMB - Arun
$100 USD in 1 day
3.2 (1 review)
2.0
2.0
14 freelancers are bidding on average $106 USD for this job
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Hi, We are a design house based in Bangalore. PLease see the PMB. Regards, Geo
$200 USD in 10 days
4.8 (7 reviews)
5.9
5.9
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I will design electronic circuit and deliver to you the schematic.
$30 USD in 45 days
5.0 (1 review)
1.4
1.4
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Hi, This is Parag Karia. Please see the PM for more details. Thanks, Parag
$30 USD in 1 day
2.2 (1 review)
2.5
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See details in MB.
$200 USD in 10 days
0.0 (2 reviews)
4.5
4.5
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please see your pmb...:)
$45 USD in 5 days
0.0 (0 reviews)
0.0
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Please check Your pm, thanks.
$80 USD in 2 days
0.0 (0 reviews)
2.1
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We are Good in Micro controllers,Firmware Development, and Embedded Systems!
$100 USD in 7 days
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size limit of circuit layout?what type SMT or THT?
$111 USD in 15 days
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simple, don't want to re eng aaaaaaaaaaaaaaaa re________d your transformer
$30 USD in 5 days
0.0 (0 reviews)
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please send me whether u require a switching mode power supply or any other type power supply, I quoted for switching type power supply, if u want me to design a power supply other than the switching type, i can do that for the same price.
$60 USD in 15 days
0.0 (0 reviews)
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I'v completed various project on electronics in my engineering university Lab.
$100 USD in 3 days
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About the client

Flag of INDIA
Amravati, India
5.0
1
Member since May 22, 2010

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